#6855CC
Closest named color: Slate Blue (#6A5ACD). oklch(53.3% 0.177 286), rgb(104, 85, 204).
Aa
White text reads best on this color (5.58:1).
About this color
#6855CC is a medium-dark, vivid purple. In OKLCH its lightness is 53%, its chroma 0.177 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Slate Blue (#6A5ACD), ΔE 0.012 away. White text reads best on it, at 5.58:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.177) |
| Temperature | cool |
| Nearest name | Slate Blue (#6A5ACD) |
| Black text | 3.75:1 |
| White text | 5.58:1 |
Values
| HEX | #6855CC |
| RGB | rgb(104, 85, 204) |
| HSL | hsl(250, 54%, 57%) |
| OKLCH | oklch(53.3% 0.177 286) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #6855CC | 5.58:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #6855CC | 3.75:1 | AA large text | Lc 26.5 | Dividers and decoration only |
| #6855CC text on white | 5.58:1 | AA | Lc 77.6 | Fine for body text |
| #6855CC text on black | 3.75:1 | AA large text | Lc -24.2 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F5F5FD
oklch(97.2% 0.011 286.2)
-
Step 100
100
#E8E8F9
oklch(93.6% 0.023 286)
-
Step 200
200
#D6D6F6
oklch(88.6% 0.044 285.5)
-
Step 300
300
#BCBAF2
oklch(81% 0.079 286.1)
-
Step 400
400
#9A94EC
oklch(70.7% 0.127 285.8)
-
Step 500
500
#8376E6
oklch(63% 0.163 286)
-
Step 600
600 (this color)
#6855CC
oklch(53.3% 0.177 286)
-
Step 700
700
#5D4BB8
oklch(49.1% 0.165 286.2)
-
Step 800
800
#4B3E95
oklch(42.6% 0.137 285.8)
-
Step 900
900
#3E3676
oklch(37.6% 0.106 285.8)
-
Step 950
950
#242045
oklch(26.9% 0.067 285.9)
#6855CC with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #006BD0 | 0.095 |
| Deuteranopia (no green cones) | #0064C9 | 0.093 |
| Tritanopia (no blue cones) | #457088 | 0.148 |
| Achromatopsia (no color) | #686868 | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6855CC
#6855CC
oklch(53.3% 0.177 286)
- #767000
#767000
oklch(53.3% 0.114 105.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #6855CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Blue #6A5ACD ΔE 0.012
- Light Indigo #6D5ACF ΔE 0.015
- Iris #6258C4 ΔE 0.017
- Dark Periwinkle #665FD1 ΔE 0.024
- Bluey Purple #6241C7 ΔE 0.046
- Warm Blue #4B57DB ΔE 0.047
- Purpley #8756E4 ΔE 0.063
- Blue With A Hint Of Purple #533CC6 ΔE 0.068
Use #6855CC in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.